CFD Online Discussion Forums - How to define cylindricalInletVelocity 0 folder for a hollow cylinder?

Hello everyone,

I need to define the velocity inlet in my project. I'm simulating a biofilter.
The geometry of the biofilter is a hollow cylinder with thousands of pores. I create an STL with all the "covers" of each pore and now I need to define the velocity in radial axis.

I try to define velocity ,but only show me in one direction or axis (images attached)

Code:

boundaryField 

{ 

  ...

 

    inlet_lecho 

    { 

    type                  cylindricalInletVelocity; 

    axis                  (0 1 0); 

    centre               (0 0 0); 

    axialVelocity      constant 0; 

    radialVelocity     constant -0.134; 

    rpm                    constant 0; 

    value                  uniform (0 0 0); 

    //type                 surfaceNormalFixedValue; 

    //refValue           uniform -1.817;  



    }     

 

    outlet_lecho 

    { 

        

    type                     cylindricalInletVelocity; 

    axis                     (0 1 0); 

    centre                  (0 0 0); 

    axialVelocity         constant 0; 

    radialVelocity        constant -0.134; 

    rpm                      constant 0; 

    value                    uniform (0 0 0); 

    // type                   surfaceNormalFixedValue; 

    // refValue             uniform -1.817;  

  

    }     



....

I really appreciate your answer, I need to make the velocity goes inward the cylinder

Regards!